Modelling and simulation of lanthanum (La) and neodymium (Nd) leaching from monazite ore using METSTM

Autor:	R. Abdul Rasid, L. N. M. Suli, A. Hisham, Fatin Nasuha Yahya, W. H. W. Tbrahim
Rok vydání:	2020
Předmět:	Materials science chemistry Monazite Metallurgy Lanthanum chemistry.chemical_element Leaching (metallurgy) Neodymium
Zdroj:	IOP Conference Series: Materials Science and Engineering. 736:022106
ISSN:	1757-899X 1757-8981
Popis:	Digestion and leaching are known as part of the main processing pre-treatment method in the extraction of rare earth elements (REEs). This work aims to carry out the sensitivity analysis of the liquid–solid (L/S) ratio, the type of acids as well as the number of reactors for the recovery of REEs, namely lanthanum (La) and neodymium (Nd) from monazite concentrate through the leaching process. A model was developed and simulated by using METSIM, a software for modelling metallurgical processes. The process was modelled as a two-step process; the first is the digestion, followed by the leaching process to produce monazite leachate. The results show that the optimum L/S ratio was 8:1 to recover the highest amount of REEs, with HCl was found to perform better as a solvent for the recovery of REEs compared to H2SO4. In addition, the optimum recovery of REEs was achieved by using three reactors, which is in the range of 70-95%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::aa6aa2bc3d790c485c14375545a9dee4 https://doi.org/10.1088/1757-899x/736/2/022106 Zobrazit plný text záznamu